Abstract
The dipole moment of the lowest Π bending state of (HCN)2 has been determined by tunable far-infrared Stark spectroscopy to be 6.023(31) D. This represents a reduction in dipole moment of 0.54(5) D relative to the ground state, which is over five times too large for simple harmonic oscillations of uncoupled rods. Although qualitative comparison with related systems suggests the possibility of a secondary minimum near the T-shaped configuration, electrostatic modeling does not support the existence of such a feature.
Original language | English (US) |
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Pages (from-to) | 335-345 |
Number of pages | 11 |
Journal | Journal of molecular spectroscopy |
Volume | 170 |
Issue number | 2 |
DOIs | |
State | Published - Apr 1995 |